add required ALG_ on Readme

[8de2fdb0]

Is it possible to add the list of all required ALG_'s into the readme?

I looked a bit through the code but i am not very familiar with the JDK for java cards.

I don't know if the ones below are all that are required.

SatochipApplet/src/org/satochip/applet/CardEdge.java

Lines 290 to 292 in 8cbaa1d

	private final static byte ALG_ECDSA_SHA_256= (byte) 33;
	private final static byte ALG_EC_SVDP_DH_PLAIN= (byte) 3; //https://javacard.kenai.com/javadocs/connected/javacard/security/KeyAgreement.html#ALG_EC_SVDP_DH_PLAIN
	private final static byte ALG_EC_SVDP_DH_PLAIN_XY= (byte) 6; //https://docs.oracle.com/javacard/3.0.5/api/javacard/security/KeyAgreement.html#ALG_EC_SVDP_DH_PLAIN_XY

In the case of ALG_EC_SVDP_DH_PLAIN_XY it seems that one is not supported by any of the listed java cards in the readme.
I looked at https://www.fi.muni.cz/%7Exsvenda/jcalgtest/table.html using c89 and c92.